32LS5600, 32LS560S, 32LS560T, 32LS5610, 32LS561T, 32LS5620, 32LS562T (CHASSIS:LD21B) - LG TV Service Manual (repair manual). Page 44

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A. Video error
Picture broken/ Freezing
Y
N
☞ A5
N
Check RF Signal level
Normal 
Signal?
Check RF Cable 
Connection
1. Reconnection
2. Install Booster
Check
S/W Version
S/W Upgrade
Check whether other equipments have problem or not.
(By connecting RF Cable at other equipment)
→ DVD Player ,Set-Top-Box, Different maker TV etc`
SVC 
Bulletin?
Replace
Main B/D
Check
Tuner soldering
Normal 
Picture?
Y
N
Y
Close
Normal 
Picture?
Y
Close
. By using Digital signal level meter
. By using Diagnostics menu on OSD
( Menu→ Set up→ Support → Signal Test )
- Signal strength (Normal : over 50%)
- Signal Quality  (Normal: over 50%)
Normal 
Picture?
Y
Contact with signal distributor
or broadcaster (Cable or Air) 
N
N
Normal 
Picture?
Y
Close
N
☞ A6
Standard Repair Process
Established
date 
Revised date 
3/14
LCD  TV
Error
symptom
2012. 01 .14
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